The majority of existing studies predict a significant increase in global hydrogen demand. The
global demand for hydrogen also depends heavily on the respective regional climate policy
and how ambitious it is. The range of total hydrogen demand in 2050 is projected to be
between 4 and 11 percent of global energy demand. However, there are strong regional
differences: For the EU, the share could be up to 14 percent, while for China, the majority of
scenarios only show a hydrogen share of a maximum of 4 percent of the total energy. The
projections of hydrogen demand vary considerably, which is why there are significant
differences in the classification of the role of hydrogen in future energy systems.